Galvanized Rectangular Metal Hole Punch 1.thick:0.2-12mm 2. ... :0.5m-3m 4.shape:Round, Square Galvanized Rectangular Metal Hole Punch Punch Metal /Punched Metal/perforated metalMaterialCarbon steel, Aluminum, Brass, Copper. ... FinishPowder coated,galvanized,polished,or no finishHole shapeRound, Square, Slot, ...